<template>
  <div class="wrapper">
    <swiper ref="mySwiper" :options="swiperOptions" v-if="swiperShow">
      <swiper-slide v-for="img in list" :key="img.id">
        <img class="swiper-img" alt="swiper-img"
              :src="img.imgUrl">
      </swiper-slide>
      <div class="swiper-pagination" slot="pagination"></div>
    </swiper>
  </div>
</template>

<script>
export default {
  props: {
    list: Array
  },
  data () {
    return {
      swiperOptions: {
        pagination: {
          el: '.swiper-pagination'
        },
        loop: true,
        autoplay: {
          disableOnInteraction: false,
          delay: 2500
        }
      }
    }
  },
  computed: {
    swiperShow () {
      return this.list.length
    }
  }
}
</script>

<style lang='stylus' rel='stylesheet/stylus' scoped>
  .wrapper >>> .swiper-pagination-bullet-active
    background  #fff
  .wrapper
    overflow hidden
    width 100%
    height 0
    padding-bottom 30%
    background #ccc
    .swiper-img
      width 100%
</style>
